<!DOCTYPE HTML>
<html>
<meta name="viewport" content="width=device-width">
<body style="height: 5000px; overflow:hidden">
  <div style="display: block; margin-top: 100px; position:fixed; overflow:scroll; top: 0px; width: 50px; height: 100px"><div style="height:200px; background-color: red"></div></div>
  <div style="display: block; margin-top: 20px; position:relative; left: 50px; width: 50px; height: 100px; background-color: red"></div>
</body>
</html>
